"Nanoparticles disguised as red blood cells could be used to deliver anti-cancer drugs directly to a tumour. So say researchers at the University of California at San Diego, whose new technique is unique in its approach to harnessing nanoparticles."
Nanoparticles play at being red blood cells - physicsworld.com
Thursday, June 30, 2011
Aircrafts make clouds rain
"For more than 50 years it has been known that aircraft can punch large holes or carve out canals inside clouds as they pass through them – but no-one had been able to explain exactly why this happens. Now researchers in the US have identified the cause by comparing satellite images of clouds with the results of computer modelling. They say that the phenomenon could lead to extra precipitation in the vicinity of major airports."
Aircraft punch holes in clouds and make it rain - physicsworld.com
Dakhla Oasis
A French excavation team made several discoveries in Balat village in the Dakhla Oasis, around 500 km south of Cairo. More at http://www.archaeogate.org/egittologia/article/1427/1/recenti-scoperte-archeologiche-nelloasi-di-dakhla.html
http://www.almasryalyoum.com/en/node/470508 and also
An ancient Egyptian federation
http://www.almasryalyoum.com/en/node/470508 and also
An ancient Egyptian federation
An ancient Egyptian federation
E il faraone inventò lo Stato federale, by Aristide Malnati
"Il federalismo ha avuto la prima manifestazione storica nell’Antico Egitto. ... è la conclusione dell’analisi degli elementi archeologici e storici, emersi in 30 anni di scavo sistematico sul sito di Balat, capoluogo dell’Oasi di Dakhla (200 Km a Ovest dell’odierna Luxor) durante il regno dei sovrani della VI Dinastia (2300-2200 a. C.); scavo condotto dall’archeologo francese Georges Soukiassian alla testa di un’équipe internazionale." Balat è il più antico abitato egizio giunto fino a noi. "A Balat sono state rinvenute imponenti vestigia di quello che fu il fulcro del potere della regione più ricca d’Egitto, in particolare (ma non solo) durante la VI Dinastia. Qui risiedevano e facevano il bello e cattivo tempo i Governatori di tutta l’Oasi ... Godevano di forte autonomia e di reale possibilità di incidere anche in decisioni di politica nazionale. ... Se passiamo poi alla necropoli per l’eterno riposo dei, diremmo oggi, Presidenti della regione, il quadro della venerazione, in cui erano tenuti, si completa: ognuno fu sepolto in una mastaba, un’imponente sepoltura a sviluppo sotterraneo (quasi una piramide rovesciata), che sfociava nella camera funeraria superbamente affrescata con scene".
More
http://www.avvenire.it/Cultura/faraone_201106301208149670000.htm
As reported by Aristide Malnati, federalism had been developed for the first time in the ancient Egypt. This is a conclusion after analysis of archaeological and historical elements, lasted for 30 years during the systematic excavations on the site of Balat, Dakhla Oasis (200 km due west of Luxor). The period was that of the Sixth Dynasty (2300-2200 BC). The excavation is lead by the French archaeologist Georges Soukiassian.
Balat is considered the oldest Egyptian village. It was the most powerful center in one of the richest regions in Egypt, particularly during the Sixth Dynasty. Here lived the Governors of Oasis, having wide autonomy from the king and a real possibility to influence the decisions of the national policy.
As reported by Aristide Malnati, federalism had been developed for the first time in the ancient Egypt. This is a conclusion after analysis of archaeological and historical elements, lasted for 30 years during the systematic excavations on the site of Balat, Dakhla Oasis (200 km due west of Luxor). The period was that of the Sixth Dynasty (2300-2200 BC). The excavation is lead by the French archaeologist Georges Soukiassian.
Balat is considered the oldest Egyptian village. It was the most powerful center in one of the richest regions in Egypt, particularly during the Sixth Dynasty. Here lived the Governors of Oasis, having wide autonomy from the king and a real possibility to influence the decisions of the national policy.
Tuesday, June 28, 2011
New Pharaonic artefacts discovered in North Egypt - Ahram Online
"New Pharaonic artefacts discovered in North Egypt's site of San El-Hagar
A collection of painted blocks used in the construction of king Osorkon II’s temple have been unearthed in San El-Hagar in the Delta city of Sharqia"
New Pharaonic artefacts discovered in North Egypt's site of San El-Hagar - Ancient Egypt - Heritage - Ahram Online
A collection of painted blocks used in the construction of king Osorkon II’s temple have been unearthed in San El-Hagar in the Delta city of Sharqia"
New Pharaonic artefacts discovered in North Egypt's site of San El-Hagar - Ancient Egypt - Heritage - Ahram Online
Monday, June 27, 2011
A "Mobius" graphene
"In 1858, August Mobius dreamt up a shape with a single surface and only one edge. The Mobius strip has fascinated children and scientists alike since then.
How small can these shapes be? In December 2003, German chemists made a molecular Mobius strip out of a benzene-like ring modified with a belt-like carbon structure. Since then, various groups have produced increasingly bizarre Mobius-type molecules, including one that can switch back and forth from a Mobius to an ordinary strip when zapped with light.
Of course, the obvious choice of material with which to make Mobius molecules is graphene. But this particular trick has eluded chemists, an omission that clearly irks. Now Douglas Galvao from the Universidade Estadual de Campinas in Sao Paolo, Brazil, and buddies have decided to grip the bull by the horns and calculated the properties that Mobius carbon might have."New form of "Mobius" carbon predicted - Technology Review
How small can these shapes be? In December 2003, German chemists made a molecular Mobius strip out of a benzene-like ring modified with a belt-like carbon structure. Since then, various groups have produced increasingly bizarre Mobius-type molecules, including one that can switch back and forth from a Mobius to an ordinary strip when zapped with light.
Of course, the obvious choice of material with which to make Mobius molecules is graphene. But this particular trick has eluded chemists, an omission that clearly irks. Now Douglas Galvao from the Universidade Estadual de Campinas in Sao Paolo, Brazil, and buddies have decided to grip the bull by the horns and calculated the properties that Mobius carbon might have."New form of "Mobius" carbon predicted - Technology Review
Farewell Lieutenant Columbo
"Peter Michael Falk (September 16, 1927 – June 23, 2011) was an American actor, best known for his role as Lieutenant Columbo in the television series Columbo. He appeared in numerous films and television guest roles and was nominated for an Academy Award twice (for 1960's Murder, Inc. and 1961's Pocketful of Miracles), and won the Emmy Award on five occasions (four for Columbo) and the Golden Globe award once. Director William Friedkin, when discussing Falk's role in his 1978 film The Brink's Job said that "Peter has a great range from comedy to drama. He could break your heart or he could make you laugh.""
Image created with labyrinthine tiling (see http://staff.polito.it/amelia.sparavigna/rendering/index.html, http://arxiv.org/abs/cs/0609084).
Friday, June 24, 2011
Hot quarks break free
"Physicists in the US, India and China have calculated that quarks and gluons can break free from their confinement inside protons and neutrons at a temperature of around two trillion degrees Kelvin – the temperature of the universe a fraction of a second after the Big Bang. The researchers arrived at this figure by combining the results of supercomputer calculations and heavy-ion collision experiments. They say that it puts our knowledge of quark matter on a firmer footing."
Quarks break free at two trillion degrees - physicsworld.com
Wrinklons
"A new quasiparticle called the "wrinklon" could help explain why materials as diverse as graphene and household curtains wrinkle in much the same way – despite their very different length scales. The particle has been introduced by researchers in Belgium, France and the US as a result of measurements on a wide range of materials on length scales from micrometres to metres. While the work may not lead to more attractive curtains, wrinkles do turn out to affect the electronic properties of graphene and the analysis could therefore influence the development of graphene-based devices."
Voyager mission at the edge of the solar system
"Recent data from the spacecraft have shown a gentle decrease in the velocity of the solar wind at the heliopause – the outer boundary of the heliosheath – not the abrupt discontinuity predicted by current theories. Also, scientists looking at other data from both Voyager 1 and Voyager 2 have found that the magnetic field in the heliosheath is a tumultuous foam of magnetic bubbles, as compared to the graceful arcs of magnetic field lines they had expected."
More surprises for the Voyager mission at the edge of the solar system - physicsworld.com